General Links
- NRCA: National Roofing Contractors Association
- Midwest Roofing Contractors Association
- RIEI: Roofing Industry Educational Institute: Seminar Schedule
- S.P.R.I.: The Single Ply Roofing Institute
- UL: Underwriters Laboratories
- FM Global: The world leader in Property Loss Prevention
- IRI: Industrial Risk Insurers: Now GE Insurance Solutions
- PIMA: Polyisocyanurate Insulation Manufacturers Association (roofing board insulation) Home Page
Construction Associations and Organizations Links
- A.I.A.: The American Institute of Architects Home Page
- NIBS: National Institute of Building Sciences
- NSPE: National Society of Professional Engineers
- ASTM Web Site: American Society for Testing and Materials
- CSI: The Construction Specifications Institute
Roofing Related Links
- Firestone Building Products Company
- Siplast
- Soprema
- Carlisle SynTec Systems
- Johns Manville Commercial Roofing Division Page
- Sarnafil PVC Membranes
- Fibertite Roofing Systems
- GAF Materials Corporation